Adjusting audio output levels, Selecting audio phase – Lectrosonics Venue (Narrowband) User Manual

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Venue Narrowband Receiver

Adjusting Audio Output Levels

The audio output levels at the rear panel XLR jacks are

software controlled. (The front panel LEVEL knob af­

fects the PHONES output only.)

The optimum output level will provide the highest level

signal possible without overloading the input to external

equipment or driving a subsequent stage in the signal

chain into limiting or compression. Ideally, the gain

needed to drive the rest of the signal chain should be

present at the receiver outputs, with each successive

stage in other equipment set to unity (no gain or loss).

NOTE: In Ratio Diversity and Frequency Diversity

modes, the receiver modules are paired 1-2, 3-4,

5-6. Setting the audio level output on either module

in the pair, sets the audio output to the same level

on both of them.

1. Navigate to the Level setup screen.

2. Select each receiver one at a time with the buttons

under the LCD and rotate the knob to adjust the

output to the desired level.

Selected Receiver

Function

Button

Output Level

Tone On/Off Indicator

(Shown in Off position.)

3. Use the Tone Generator to adjust other equipment

to match the output level from the receiver with full

modulation of the transmitter. Press the Function

Button to start the tone.

The indicator will reverse to a dark background

with light letters when the tone is delivered to the

selected output. Rotate the MENU/SELECT control

to set the desired level.

WARNING: The 1 kHz reference tone is

equivalent to full modulation at the transmitter.

It is LOUD.

The test tone level is always at the 0dB reference level

(full modulation of the wireless system), which is the

level at which the first red “limit” light comes on at the

transmitter.

The highest level that the equipment downstream will

ever see before the receiver clips is 4.5 dB higher than

the test tone. Note that this is

output headroom. Over

the entire 30+ dB range of the limiter in a Lectrosonics

transmitter, the output at the receiver goes up only 4.5

dB or less.

NOTE: The tone is a sine wave with about 1%

distortion

Selecting Audio Phase

Microphone wiring and other vagaries can alter the

phase of an audio signal. To compensate for this, the

phase of the audio output of each receiver module can

be inverted.

1. Navigate to the Phase setup screen.

2. Select each receiver module with the Receiver

Select Button and adjust the phase with the MENU/

SELECT control.

Selecting Transmitter Battery Status

Monitoring Mode

The receiver will monitor the status of the batteries in

the transmitters and display it when used with certain

transmitters, such as Lectrosonics 200 Series and Digi­

tal Hybrid models. The type of battery being used in the

transmitter must be defined in the TxBatt setup screen.

NOTE: The Compat Mode (compatibility mode)

set for each receiver module will determine which

battery monitoring methods are available

The TxBatt setup screen allows you to select the exact

battery being used in the transmitter to provide more

accurate battery level monitoring. Alkaline, lithium and

rechargeable AA and 9V types are commonly used.

The voltage declines gradually over the life of alkaline

and lithium types, so the voltage can be estimated and

displayed by the receiver. Rechargeable types, on the

other hand, maintain almost constant voltage as they

discharge, so a timer is provided in the receiver to

track operating time and anticipate the need for battery

changes.

1. Navigate to the TxBatt setup screen.

LECTROSONICS, INC.

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